EP2075797B1 - Content playback apparatus - Google Patents

Content playback apparatus Download PDF

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Publication number
EP2075797B1
EP2075797B1 EP08172961A EP08172961A EP2075797B1 EP 2075797 B1 EP2075797 B1 EP 2075797B1 EP 08172961 A EP08172961 A EP 08172961A EP 08172961 A EP08172961 A EP 08172961A EP 2075797 B1 EP2075797 B1 EP 2075797B1
Authority
EP
European Patent Office
Prior art keywords
playback
content
resume
time
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP08172961A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2075797A1 (en
Inventor
Yoshihiro Tsukamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2075797A1 publication Critical patent/EP2075797A1/en
Application granted granted Critical
Publication of EP2075797B1 publication Critical patent/EP2075797B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording

Definitions

  • This invention relates to a content playback apparatus and in particular to a content playback apparatus including a resume function for performing playback resume operation at the stop position if the playback operation is stopped while content is being played back.
  • the resume playback function of the content playback apparatus is a function of storing the previous playback point of content and playing back the content starting at the point continued from the previous point when the content is played back next time.
  • the resume playback functions if playing back of recorded content of TV, etc., is stopped at a point where the main part has ended and only an advertisement remains, the later playback will be started at the point although the main part will not be played back.
  • a method of acquiring the playback point at the stop time and determining whether resume playback at the next playback time is to be set to ON or OFF according to the time is proposed. Specifically, if "playback stop position/total playback time" exceeds a given ratio, the resume function is set to OFF. For example, when a 60-minute moving video picture has been played back 90% or more (namely, has been played back 54 minutes or more), the resume function is set to OFF. (For example, refer to JP-A-2004-207935 )
  • the content will be resumed at the playback stop position. That is, although the content is played back to the position without the intention of viewing the content, the next playback of the content will be resumed at the position. For example, although the user wants to view content stopped at a midpoint six months ago from the beginning because the user does not remember the viewed part of the content, the content will be played back starting at the midpoint. Further, for example, if a person viewing content differs, he or she will view the part continued from the part played back by anther person.
  • the actual playback time of actually playing back content is measured and if the ratio of the actual playback time to the content playback time is the predetermined threshold value or less or the predetermined threshold value or more, the resume function is set to OFF and playing back the content is started from the beginning of the content.
  • the ratio of the actual playback time to the total playback time is 10% or less and the user has not viewed the content so much (for example, if the user has checked the content and found it unexpected content and thus stopped the playback, etc.,) or if the ratio of the actual playback time to the total playback time exceeds 90% and the user has almost completed viewing the content, playing back the content at the next playback time will be started from the beginning of the content, so that ease of operation of the resume function can be improve.
  • the content playback apparatus determines whether resume playback is to be set to ON or OFF according to the actual playback time. That is, (1) a comparison is made between the actual playback time (if the playback position is advanced by fast forward, etc., the time is not counted as the actual playback time) and the total playback time of the content and whether resume playback is to be set to ON or OFF is determined. (2) Environmental information at the previous playback time (playback date and time, playback person, etc.,) is retained and then is compared with environmental information at the present playback time and whether resume playback is to be set to ON or OFF is determined.
  • the resume function is a function for performing playback resume operation at the stop position if the playback operation is stopped while content is being played back.
  • a situation in which a content playback apparatus according to a first embodiment of the invention is used is, for example, the case where the user, wanting to playback a certain content, searching to see if the content is what he or she wants. In this case, to play back the content to check it, the user fast-forwards to a position where the content can be checked, and checks the content.
  • the user finds that the content differs from expected content after playing back about 10 seconds, for example, the user decides to stop the playback. In this case, the user does not desire to play back from the stop position at the next playback time, namely, desires to turn off resume.
  • the content playback apparatus acquires the actual playback time and determines whether resume playback at the next playback time is to be set to ON or OFF based on the time information, whereby if the user checks the content and finds it unexpected content and thus stops playback, resume playback at the playback stop position can be prevented.
  • FIG. 1 is a schematic representation of an example of a content playback state.
  • resume ON/OFF determination method in the content playback apparatus of the embodiment, if the actual playback time is short, resume is set to OFF. If "actual playback time/total playback time" is a given value or less, resume may be set to OFF.
  • the playback time of playback at predetermined speed to such an extent that the user can understand the content (fast playback) such as double-speed playback is also contained in the actual playback time.
  • FIG. 2 is a diagram to show an example of the schematic configuration of the content playback apparatus according to the first embodiment of the invention.
  • a content playback apparatus 10 shown in FIG. 2 is made up of a playback control section 11, a playback time measurement section 12, a resume determination section 13, a resume information storage section 14, a content storage section 15, a playback section 16, and an input section 17.
  • the playback control section 11 acquires content from the content storage section 15 and controls a playback mode of playback, stop, fast forward, rewind, etc., for the acquired content.
  • the playback control section 11 1 plays back content in accordance with resume information (playback starting at continuation from the previous playback part/playback from the beginning).
  • the playback control section 11 has a function to determine that the start position of the playback resume operation is the top of content if the ratio of the actual playback time to a predetermined playback time is a predetermined first threshold value or less or is a predetermined second threshold value or more. It also has a function to determine that the start position of the playback resume operation is the top of content if the actual playback time is a predetermined threshold value or less.
  • the playback time measurement section 12 measures the actual playback time required for resume determination, receives a playback mode change notification from the playback control section 11, and starts, terminates, or temporarily halts the measurement with the notification as a trigger. Upon reception of a playback termination notification, the playback time measurement section 12 passes the measured actual playback time to the resume determination section 13.
  • the playback time measurement section 12 also has a function to measure the actual playback time of actually playing back content according to input of playback operation through the input section 17.
  • the resume determination section 13 determines whether or not resume playback is to be enabled at the next playback time. It also has a function to make a comparison between the ratio of the actual playback time to a predetermined playback time and the predetermined first threshold value or the predetermined second threshold value larger than the predetermined first threshold value and a function to make a comparison between the actual playback time and the predetermined threshold value.
  • the resume information storage section 14 stores resume information related to each content.
  • the playback stop position, etc., is recorded in the resume information.
  • the content storage section 15 stores various contents.
  • the playback section 16 plays back various contents based on a command from the playback control section 11.
  • the input section 17 accepts various operation inputs.
  • FIG. 3 is a drawing to show an example of a processing flow when the content playback apparatus 10 of the embodiment starts to play back content.
  • FIG. 4 is a flowchart to show the example of the processing flow. The processing in FIGs. 3 and 4 is started when the input section 17 inputs a. playback command of remote control operation, etc., (playback operation) from the user and sends a playback command of content A to the playback control section 11, for example.
  • step S11 in FIG. 4 the playback control section 11 acquires the content A from the content storage section 15.
  • step S12 the playback control section 11 acquires resume information related to the content A from the resume information storage section 14.
  • the playback control section 11 plays back the content starting at continuation from the previous playback part or from the beginning in accordance with the resume information.
  • step S14 the playback control section 11 sends a notification of the playback start to the playback time measurement section 12.
  • step S15 the playback time measurement section 12 starts to measure the actual playback time.
  • the playback time measurement section 12 starts to measure the actual playback time only when content is played back.
  • FIG. 5 is a drawing to show an example of a processing flow when the content playback apparatus 10 performs operation (temporarily halt, fast forward, or fast rewind) during content playback.
  • FIG. 6 is a flowchart to show the example of the processing flow. The processing in FIGs. 5 and 6 is started when the input section 17 inputs remote control operation from the user (temporarily halt, fast forward, or fast rewind) at the time of playing back the content A, for example.
  • FIG. 6 shows the processing flow of only temporary halt operation.
  • step S21 in FIG. 6 the playback control section 11 executes temporarily halt, fast forward, or fast rewind of the content A.
  • step S22 the playback control section 11 sends a notification of temporarily halt, fast forward, or fast rewind to the playback time measurement section 12.
  • step S23 the playback time measurement section 12 temporarily halts measuring the actual playback time. In this case, the time counting remains to be stopped. The measurement time is not reset.
  • step S24 if the input section 17 inputs a playback resume command from the user, the playback control section 11 executes playback resume of the content A.
  • step S25 the playback control section 11 sends a notification of playback start to the playback time measurement section 12.
  • step S2S the playback time measurement section 12 resumes measuring the actual playback time. That is, the time measurement stopped at step S23 is resumed.
  • the point to be noted is that the time measurement is temporarily stopped except when the content is played back.
  • FIG. 7 is a drawing to show an example of a processing flow when the content playback apparatus 10 stops playing back content.
  • FIG. 8 is a flowchart to show the example of the processing flow. The processing in FIGs. 7 and 8 is started when the input section 17 inputs a stop command entered by remote control operation of the user when the content A is played back, temporarily halted, fast-forwarded, or fast rewound, for example.
  • step S31 in FIG. 8 the playback control section 11 executes stop processing of the content A.
  • step S32 the playback control section 11 sends a notification of stop to the playback time measurement section 12.
  • step S33 the playback time measurement section 12 stops measuring the actual playback time.
  • the playback time measurement section 12 passes information of the measured actual playback time to the resume determination section 13.
  • the resume determination section 13 acquires information of the total playback time of the content A and information of the playback stop position of the content A from the playback control section 11 for resume determination.
  • the resume determination section 13 determines whether or not resume playback is to be enabled at the next playback time based on the total playback time and the actual playback time.
  • any of the following can be used:
  • step S37 if the resume determination section 13 determines that resume playback is to be executed, based on the determination result, the resume determination section 13 records resume information (containing the playback stop position) in the resume information storage section 14. If it is determined that resume playback is not executed, stop position information is set to 00:00:00. If it is determined that resume playback is not executed, the resume information can also be deleted from the resume information storage section 14. The points to be noted are that whether or not resume playback is to be enabled at the next playback time is determined based on the total playback time and the actual playback time and that whether or not resume playback is to be enabled is determined at the present playback stop time rather than at the next content playback resume time.
  • the actual playback time of actually playing back content is measured and if the actual playback time is the predetermined threshold value or less, playing back the content is started from the beginning of the content. Accordingly, if the user checks the content and finds it unexpected content and thus stops playback, for example, if the actual playback time is 10 seconds or less, playing back the content at the next playback time will be started from the beginning of the content, and ease of operation of the resume function can be improved.
  • the actual playback time of actually playing back content is measured and if the ratio of the actual playback time to the content playback time is the predetermined threshold value or less or the predetermined threshold value or more, playing back the content is started from the beginning of the content. Accordingly, for example, if the ratio of the actual playback time to the total playback time is 10% or less and the user has not viewed the content so much or if the ratio of the actual playback time to the total playback time exceeds 90% and the user has almost completed viewing the content, playing back the content at the next playback time will be started from the beginning of the content, and ease of operation of the resume function can be improved.
  • a situation in which a content playback apparatus according to a second embodiment of the invention is used is, for example, the case where a sister played back content and stopped at a midpoint at the previous playback time and a younger brother will play back the content this time.
  • the younger brother does not want to view the content starting at the continuation from the part stopped by the sister and desires to play back the content from the beginning.
  • the user does not remember the viewed part of the content and thus desires to play back the content from the beginning rather than from the continuation.
  • the content playback apparatus stores playback environment information and determines whether resume playback Is to be set to ON or OFF from the previous playback environment information, whereby, for example, if the user views one content after a long time, the content playback apparatus can play back the content from the beginning or if a different person views one content, the content playback apparatus can play back the content from the beginning.
  • the playback environment information is information storing the state at the previous playback time; for example, it contains information indicating who played back, the playback date and time, etc.
  • a resume ON/OFF determination method in the content playback apparatus of the embodiment is (1) to set resume to OFF if a different person plays back one content.
  • the person who plays back content is determined using an SIM card (for example, to view a moving video picture on a mobile telephone), fingerprint authentication (for example, to register fingerprint in the remote control), etc., for example.
  • a comparison is made between the previous playback time (date and time) and the present playback time (date and time) and when a predetermined time period has elapsed since the previous playback time, resume is set to OFF.
  • the duration of the OFF determination time period can be changed.
  • FIG. 9 is a diagram to show an example of the schematic configuration of the content playback apparatus according to the second embodiment of the invention.
  • a content playback apparatus 20 shown in FIG. 9 is made up of a playback control section 11, a resume determination section 13, a resume information storage section 14, a content storage section 15, a playback section 16, an input section 17, and a playback environment information acquisition section 21.
  • the playback control section 11 acquires content from the content storage section 15 and controls a playback mode of playback, stop, fast forward, rewind, etc., for the acquired content.
  • the playback control section 11 plays back content in accordance with resume information (playback starting at continuation from the previous playback part/playback from the beginning).
  • the playback control section 11 has a function to determine that the start position of the playback resume operation is the top of content if the elapsed time from the previous playback time to the present playback resume time is a predetermined threshold value or more. It also has a function to determine that the start position of the playback resume operation is the top of content if information of a first user and information of a second user do not match.
  • the playback environment information acquisition section 21 acquires playback environment information (information about the state at the playback time). For example, information acquired as the playback environment information is the name of the user playing back content, user identification information, the present date and time, etc.
  • the playback environment information acquisition section 21 has a function to acquire information of the time of resuming playing back content at this time and the information of the second user.
  • the resume determination section 13 makes a comparison between the playback environment information in the resume information and the present playback environment information and determines whether or not resume playback is to be enabled. It also has a function to make a comparison between the elapsed time from the previous playback time to the present playback resume time and the predetermined threshold value and a function to make a comparison between information of the first user and information of the second user.
  • the resume information storage section 14 stores resume information related to each content. In addition to the playback position, the information acquired in the playback environment information is stored in the resume information. The resume information storage section 14 also stores information of the previous content playback time and the first user information.
  • the content storage section 15 stores various contents.
  • the playback section 16 plays back various contents based on a command from the playback control section 11.
  • the input section 17 accepts various operation inputs.
  • FIG. 10 is a drawing to show an example of a processing flow when the content playback apparatus 20 of the embodiment starts to play back content.
  • FIG. 11 is a flowchart to show the example of the processing flow. The processing in FIGs. 10 and 11 is started when the input section 17 inputs a playback command of remote control operation, etc., from the user and sends a playback command of content A to the playback control section 11. for example.
  • step S41 in FIG. 11 the playback control section 11 acquires the content A from the content storage section 15.
  • step S42 the playback control section 11 requests the resume determination section 13 to make a resume determination.
  • the resume determination section 13 acquires the present playback environment information from the playback environment information acquisition section 21.
  • the resume determination section 13 acquires the resume information related to the content A from the resume information storage section 14.
  • the playback environment information at the previous playback time is recorded in the resume information.
  • the resume determination section 13 makes a comparison between the present playback environment information and the previous playback environment information and determines whether or not resume playback is to be enabled.
  • the resume determination section 13 passes the determination result to the playback control section 11 and playback is started.
  • a notification of the resume position is sent.
  • FIG. 12 is a drawing to show an example of a processing flow when the content playback apparatus 20 stops playing back content.
  • FIG. 13 is a flowchart to show the example of the processing flow. The processing in FIGs. 12 and 13 is started when the input section 17 inputs a stop command entered by remote control operation of the user when the content A is played back, temporarily halted, fast-forvvarded, or fast rewound, for example.
  • step S51 in FIG. 13 the playback control section 11 executes stop processing of the content A.
  • step S52 the playback control section 11 sends a notification of the stop position to the resume information storage section 14.
  • the resume information storage section 14 acquires the present playback environment information from the playback environment information acquisition section 21.
  • the playback environment information acquisition section 21 stores playback position information and the playback environment information in the resume information storage section 14 as the resume information.
  • the point to be noted is that the playback environment information and stop position information are stored-at the stop time.
  • the content playback apparatus 20 of the embodiment starts playing back the content from the beginning. Accordingly, as for the content stopped at a midpoint six months ago, for example, playing back the content is started at the beginning position desired by the user and ease of operation of the resume function can be improved.
  • playing back the content is started from the beginning. Accordingly, for example, if a different user views the content, playing back the content is started at the beginning position and ease of operation of the resume function can be improved.
  • the invention is useful as a content playback apparatus, etc., capable of preventing playback from being started at an inappropriate position not desired by the user and improving ease of operation of the resume function.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
EP08172961A 2007-12-28 2008-12-29 Content playback apparatus Expired - Fee Related EP2075797B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007340244A JP4990754B2 (ja) 2007-12-28 2007-12-28 コンテンツ再生装置

Publications (2)

Publication Number Publication Date
EP2075797A1 EP2075797A1 (en) 2009-07-01
EP2075797B1 true EP2075797B1 (en) 2011-11-09

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EP08172961A Expired - Fee Related EP2075797B1 (en) 2007-12-28 2008-12-29 Content playback apparatus

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US (1) US20090169172A1 (ja)
EP (1) EP2075797B1 (ja)
JP (1) JP4990754B2 (ja)

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Publication number Priority date Publication date Assignee Title
WO2005029836A2 (en) 2003-09-12 2005-03-31 Opentv, Inc. Method and system for controlling recording and playback of interactive applications
JP5985990B2 (ja) 2010-02-08 2016-09-06 スリーエム イノベイティブ プロパティズ カンパニー 共押出し成形の方法、及び、共押出し成形ダイ
JP5675141B2 (ja) * 2010-03-29 2015-02-25 キヤノン株式会社 再生装置及び再生方法
EP3142117B1 (en) 2015-09-14 2020-01-01 TP Vision Holding B.V. Content playback apparatus including a playback resume function
GB2573267B (en) * 2018-03-12 2023-02-15 Idex Biometrics Asa Power management

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JP4362248B2 (ja) * 2001-09-03 2009-11-11 パイオニア株式会社 情報記録再生装置およびコンピュータプログラム
JP4061206B2 (ja) * 2002-03-11 2008-03-12 富士フイルム株式会社 代表画像生成装置
US20030236582A1 (en) * 2002-06-25 2003-12-25 Lee Zamir Selection of items based on user reactions
US20060107301A1 (en) * 2002-09-23 2006-05-18 Koninklijke Philips Electronics, N.V. Video recorder unit and method of operation therefor
JP2004207935A (ja) * 2002-12-25 2004-07-22 Toshiba Corp コンテンツ再生装置、コンテンツ再生方法、コンテンツ記録再生装置及びコンテンツ記録再生方法
JP2004265477A (ja) * 2003-02-28 2004-09-24 Canon Inc 再生装置
JP2005216338A (ja) * 2004-01-27 2005-08-11 Sony Corp 記録再生装置
JP2006018971A (ja) * 2004-07-05 2006-01-19 Funai Electric Co Ltd データ再生装置およびデータ再生用プログラム
WO2006103602A1 (en) * 2005-03-29 2006-10-05 Koninklijke Philips Electronics N.V. Method of and controller for controlling playback of a data stream stored by means of a media item
JP4394037B2 (ja) * 2005-05-26 2010-01-06 三菱電機株式会社 情報記録媒体再生装置
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JP2007323732A (ja) * 2006-05-31 2007-12-13 Toshiba Corp 再生制御装置、再生制御方法、及び再生装置

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US20090169172A1 (en) 2009-07-02
JP4990754B2 (ja) 2012-08-01
JP2009164766A (ja) 2009-07-23
EP2075797A1 (en) 2009-07-01

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